Tags: Enzyme.
In enzymology a pyridine N-methyltransferase (EC 2.1.1.87) is an enzyme that catalyzes the chemical reactionS-adenosyl-L-methionine + pyridine S-adenosyl-L-homocysteine + N-methylpyridiniumThus the two substrates of this enzyme are S-adenosyl methionine and pyridine whereas its two products are S-adenosylhomocysteine and N-methylpyridinium.This enzyme belongs to the family of transferases specifically those transferring one-carbon group methyltransferases.